Earth Some Important Facts General Knowledge India General Knowledge GK General Knowledge Quiz General Knowledge Test General Knowledge Questions Answers

Age	4,550 million years
Mass	5.976 x 10kg
Volume	1.083 x 10 litres
Mean Density	5.518 kg/lt
Total Surface Area	510 million sq.km
Land Area	29.2% of the total surface area
Water Area	70.8% of the total surface area
Equatorial Diameter	12,755 km
Polar Diameter	12,712 km
Escape Velocity	11.2 km/sec
Highest Land Point	Mount Everest (8,852 m)
Lowest Land Point	Dead Sea (396 m)
Greatest Ocean Depth	Mariana Trench (11,033 m)
Equatorial Circumference	40,076 km
Polar Circumference	40,024 km
Mean Surface Temperature	14C
Maximum distance from sun (Aphelion)	About 152 million km
Minimum distance from sun (Perihelion)	About 147 million km
Rotation Speed	23 hrs, 56 min & 40.91 sec
Revolution Speed	365 days, 5hrs & 45.51 sec
Dates when days & nights are equal	Mar,21 (Vernal Equinox); Sept. 23 (Autumnal Equinox)
Dates of longest days and shortest nights	June 21 (Summer Solstice); Dec, 22 (Winter Solstice)

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